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F. B. MORSE.

Carriage-Top Joint. v No' 64,024 Patented Apr 23, 1857.

PETERS, PHOWLITHOGRAP'HER. WASHINGTON. D C

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. F. B. MORSE, O F N'EW,HAVEN, CONNECTICUT. 1 Letters Patent No. 64,024, dated April' 2 5, 1867.

IMPROVEMENT IN JOINTS FOR CARRIAGE-TOP BRAGES.

TO ALL WHOM IT MAY, CONCERN:

Be it known that I, F. B. MORSE, of New Haven, inthe county of New Haven, and State of Connecticut, have invented a new Improvement in Stump Joint for Carriage Tops; and I do hereby declare the following, when taken in connection with the accompanying drawings, and the letters of reference marked thereon, to be we a full, clear, and exact description of the same, and which said drawings constitute part of this specification,

and represent, in-

- Figure 1, a side view of the joint as closed to drop the carriage top; Figure 2, as open to support the top; and in Figure 3 a sectional view. 7 I

This invention relates to an improvement in an article of manufacture known as-stump joint, that is to say, ajoint formed so that the braces are welded thereto, and, whenapplieclvto the carriage, will support the top in an upright position or permit it to be dropped at pleasure. A great difficulty is experienced in the common construction, from the fact that after a little wear the joint is worn loose and shacklsy. To overcome this difficulty is the object of my invention, which consists in forming a conical hingejoint upon the stump.

I To enable others skilled in the art to construct and use my improvement, I will proceed to describe the same, as illustrated in the accompanying drawings.

A and B are the two parts of the joint. Upon the one part B is formed an ear, 0, andtnpon the other part A an ear, 1). Heretoforethe meeting surfaces of the two ears have been made fiat and secured by a rivet'or screw passing through th'jtwo, so that the wear comes almost entirelyon the rivet. I form the one part, 0,

conical, and the other para D, the reverse, and corresponding to the cone on the part 0, formed so that the two fit perfectly, as seen in fig. 3, andrseeure the two parts together'by a screw, d, as seen in fig. 3. To prevent the conical surfaces from being drawn so tightly together that the jointcannot be moved, I form a slight shoulder, it, upon the part C, but depend upon the conical surfacesfor the bearing of thejoint. And it' at any time these surfaces become worn so as to loosen, the screw may be turned and draw them again to a hearing. In the turning of the joint it will be observed that there is no wear upon the screw or rivet that secures the two parts together. Thus I have produced a joint at little or no more cost, and avoid the difiiculties which exist in the common joint. I

I do not broadly claim a. conical joint as my invention, as such are common and well known;

Having thus fully described-my invention, what I claim as new and useful, and desire to secure by Letters Patent, is-

Thehereinfdescribed stump joint, as an improved article of manufacture, consisting in the combination of the two parts A and B, when constructed and arranged together by a conical joint, substantially in the manner and, for the purpose described.

F. B. MORSE.

Wi tn esses:

JOHN E. EARLE, A. J. TIDBITS. 

